Sometimes the following happens:
Code is created with a deliberate violation of a lint message.
The message in inhibited with a comment in the code.
However, it often happens comments are not updated with code.
So the reason for the inhibition may be removed and the inhibition stays.

It would be nice to find such "broken" inhibitions, (that have no effect on the resulting messages even when all other inhibitions are disabled).
Maybe this search can be a result of executing pc-lint with a special flag.